Published: · Modified: by Andréa
RECIPE
Sometimes you want a simple recipe, and this easy vegetarian French Onion soup recipe has only six ingredients and is quick, easy, and delicious. A vegetable soup that you make in a wink if you have an unexpected visitor. The vegetarian version of the classic French onion soup is the ultimate comfort food.
Vegetarian French Onion Soup
This vegetarian French Onion Soup is rich, flavorful, and the ultimate comfort food. It's one of the most luscious soups. And it's so easy to prepare! You only need SIX ingredients for this easy french onion soup.
And when do you want to make it even more decadent? Top it with slices of bread with melty cheese.
French soup is one of the most famous recipes; beef stock is usually added to this soup. That gives a lot of flavors.
To ensure this soup gets that great flavor, the first step is to bake the onion and garlic in butter. The brown bits, which we scrape from the bottom, will enhance the flavor of this soup. You don't even miss the traditional beef broth.
And do you prefer a traditional French onion soup (with beef stock)? You can find here a good recipe for a classic French onion soup with cheesy toast.
What do you need for this Quick French Onion Soup?
To prepare this vegetarian French Onion soup, you need the following ingredients. You can find the correct amounts in the recipe card at the bottom of the blog:
- Butter - For adding a bit of creamy touch to the soup
- Garlic - Adds extra flavor.
- Onions - Traditionally, a Yellow onion is used for French onion soup. This onion is mild and becomes sweet when caramelized. The white onion is a bit milder compared to the yellow ones. Shallots are tangy and give a bit of spice. Red onions give a deeper flavor but, when baked, are still sweet. I opted for the yellow onions, but you can use an onion mixture to get the best of everyone.
- Worcestershire sauce (vegan) - Worcestershire sauce contains fish. Vegan Worcestershire sauce doesn't, so use it for a genuinely vegetarian recipe. Of course, you could make your substitute, andhereyou can find an easy recipe.
- Vegetable stock - Usehomemade vegetable stockor mushroom broth, or prepare it from store-bought cubes (and add 4 cups water). This will add a lot of flavor to the soup. However, every vegetable broth is different. So make sure to taste the soup just before serving and add black pepper and a pinch of salt when necessary.
- Baguette - The baguette is topped with grated cheese and put in the onion soup bowl. This way, it will absorb all the great flavors of the onion soup with a crispy gratin topping. The surprising touch of an authentic onion soup.
- Thyme - Use dried thyme to add lots of flavor to the soup.
- Gruyère cheese - This Swiss cheese is a bit sweet and salty. And this gooey cheese is ideal for melting and using for a gratin.
How to prepare Vegetarian Onion Soup
You can find a printable recipe with a step-by-step description at the bottom of this blog.
- Cut the onions into rings and chop the garlic finely. Melt the butter over low heat in a large saucepan and add the sliced onions. Cook for 3 minutes until the onions are translucent. Then add the garlic, stir it well, and fry for 30 seconds. Frying the onions and garlic gives them more flavor.
- Next, pour the veggie broth and Worcestershire sauce with the onions. Stir with a wooden spoon, so the browned bits will come loose from the bottom (this will give a deep flavor and golden brown color). Also, add the dried thyme (or thyme sprigs). Bring to a boil and simmer for 15 minutes.
- Meanwhile, cut the baguette into thick slices and sprinkle with the grated cheese. Finally, cut the baguette diagonally so that the slices look even better.
- Ladle soup into bowls. Place a single layer of slices of crusty bread with cheese on top of the soup and slide it under the grill for 3 minutes to get that gooey melted cheese. Serve immediately, and beware, it is burning hot! Make sure you use oven-safe bowls. Put them on a baking tray so that drippings will be caught on the tray.
Garnish with fresh parsley.
Even more flavor -Add four tablespoons of dry white wine when adding the stock.
Serve the soup when very hot. TIP: Toast extra baguette slices. When using a baguette, toast some additional baguette in the oven. You should only put two to three baguette slices in each cup, but I find them so delicious that three is not enough. So I bake some more and serve them as a side, to dip in the onion soup.
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Vegetarian French Onion Soup Recipe
Sometimes you want a simple recipe, and this easy vegetarian French Onion soup recipe has only six ingredients and is quick, easy, and delicious. A vegetable soup that you make in a wink if you have an unexpected visitor. The vegetarian version of the classic French onion soup is the ultimate comfort food.
5 of 19 votes
Printen Pin Recept
Prep Time: 5 minutes minutes
Cook Time: 15 minutes minutes
Total Time: 20 minutes minutes
Course: Lunch, Soup
Cuisine: Other
Author: Andréa
Servings: 4 persons
Author: Andréa
Equipment
soup pot
Chef's knife
Conventional oven, with grill Optional
Ingredients
- 1 tablespoon butter
- 3 onions sliced in rings
- 1 clove garlic chopped finely
- 4 cups vegetable stock
- 1 teaspoon Worcestershire sauce * worcestershiresauce contains fish. Use vegan sauce for a vegetarian version. Look in the tips for a replacement.
- 1 teaspoon dried thyme
optional
- 1 baguette
- 2 ounces Gruyère cheese grated
US Customary - Metric
Ingredients you need per step are listed below the step in Italic
Instructions
Easy onion soup
Heat butter in a pan on low heat.
1 tablespoon butter
Bake the onion at medium heat until they are translucent in 3 minutes.
3 onions
Add the garlic and stir-fry for 30 seconds.
1 clove garlic
Pour the stock and Worcestershire sauce with the onions. Stir so the brown bits will come loose from the bottom and give even more flavor.
4 cups vegetable stock, 1 teaspoon Worcestershire sauce
Sprinkle with thyme.
1 teaspoon dried thyme
Bring to the boil and let it simmer for 15 minutes.
Taste, and if necessary, add some salt and pepper to the taste.
Grated Cheese Baguettes
Preheat the broiler.
Cut the baguette into thin slices.
1 baguette
Top the baguette slices with grated cheese.
2 ounces Gruyère cheese
Pour the soup into ovenproof bowls and top with the baguette slices.
Let the cheese melt for about 3 minutes under the broiler.
Notes
1. - Vegetable broth
Use homemade vegetable stock or mushroom broth, or prepare the stock from store-bought cubes (and add 4 cups of water). This will add a lot of flavor to the soup. However, keep in mind that every vegetable broth is different. So make sure to taste the soup just before serving and add black pepper and a pinch of salt when necessary.
2. - Onions
Traditionally, a Yellow onion is used. This onion is mild and becomes sweet when caramelized. The white onion is a bit milder compared to the yellow ones. Shallots are tangy and give a bit of spice. Red onions give a deeper flavor but, when baked, are still sweet. I opted for the yellow onions, but you can use an onion mixture to get the best of everyone.
3. - Gruyère cheese
A Swiss cheese, a bit sweet and salty. And this gooey cheese is ideal for melting and using for a gratin.
4. - Worcestershire sauce
Worcestershire sauce contains fish. Vegan Worcestershire sauce doesn't, so use it for a genuinely vegetarian recipe. Of course, you could make your substitute, and here you can find an easy recipe.
5. - Vegan version
Use vegan cheese and butter (or olive oil) instead of Gruyère and butter. Replace the Worcestershire sauce with one teaspoon of soy sauce for a delicious vegan french onion soup.
6. - Even more flavor
Add four tablespoons of dry white wine to the stock.
7. - When topping with toasted bread
Make sure you use oven-safe bowls. Put them on a baking tray so that drippings will be caught on the tray.
8. - Tip
Toast extra baguette slices. When using a baguette, toast some extra slices in the oven. I know you should only put two to three baguette slices in each cup, but I find them so delicious that three is not enough. So I bake some more and serve them as a side, to dip in the onion soup.
9. - Storage
Cool the soup quickly before storing it. Don't add the topping; store it apart (or make it fresh).
- Refrigerator - store in an airtight container for up to two days.
- Freezer - Store the soup (or leftovers) in an airtight container for up to 3 months.
- Reheat - Reheat the soup on the stove, and ladle the soup into soup bowls. If you want to add the baguette topping, use heat-proof soup bowls. Add the baguette and cheese and grill.
9. - Nutritional Values
The nutritional values shown are the onion soup without the baguette and cheese.
Nutrition
Calories: 73kcal | Carbohydrates: 11g | Protein: 1g | Fat: 3g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 1g | Cholesterol: 8mg | Sodium: 983mg | Fiber: 1g | Sugar: 6g | Vitamin A: 615IU | Vitamin C: 7mg | Iron: 1mg
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Reader Interactions
Comments
Amanda Marie Boyle says
So quick and easy! Love it!Sue says
I made this for lunch and it really hit the spot. So delicious and fast! Definitely don't skip the bread and cheese under the broiler step - so yummy!Jaime says
We love a good soup and the fact that this one only needed 6 ingredients - it made a perfect easy weeknight dinner!michele says
Really easy and delicious!Sarah James says
We loved this soup, thanks for sharing.Mama Maggie's Kitchen says
Oh my! I need this in my life. Must print your recipe. Thanks for sharing.Marie says
This looks really satisfying, and perfect for the weather we've been having!Andréa says
Thank you Sarah, it's one of our favorites to.
Andréa says
Thank you for your nice words!
Andréa says
It's indeed a great recipe when weather becomes colder. Thank you Marie for your nice words.
David Haines says
Just made this for lunch - my first time attempting French Onion Soup. I added a teaspoon of marmite and a small dollop of tamarind to give it a bit more umami flavour. I didn't have the right cheese but grated a combination of Stilton, Cheddar and hard Italian cheese. Delicious, and much appreciated by my partner.
Thanks!Andréa says
Sounds delicious!